Product sheet

M2M Modem Plus RS485 IO/A

Energy and ecology

M2M MOdem plus

Industrial GPRS data collection IO RS485 Modbus

Made in Hungary

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149,00 € tax excl.

Sales unit Unit

Minimum Quantity (MOQ):
1 unit

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Product description

Cost-effective, C-rail mountable industrial modem for receiving digital signals and collecting pulse signals of residential meters.

The modem is capable of continuously counting the pulse signals of up to 4 meter systems.

The device transmits the calculated input signal values through Modbus TCP protocol to query server’s Modbus TCP.

The queries of the data sets are performed periodically (e.g. in every 15 minutes) depending on the server value set.

When it has to receive signals from more than 4 devices, we suggest using the M2M IO/RS485 CONCENTRATOR®  – which has 32 input lines.

In this case  the device requests the concentrator input counter status through the modem’s RS485 interface, and fowards the received Modbus RTU reply through Modbus TCP protocol to query the server’s Modbus TCP.

The modem can initiate queries – through its RS485 interface – towards several concentrator’s input lines.

Furthermore, the modem can switch external devices (optionally) with the help of its 2 relay outputs.

• Supporting GSM/GPRS (Gemalto® industrial module)
• 4 inputs (digital or pulse/voltage)
• 2 relay outputs (optional)

• Modbus protocol communication
• Modbus Gateway
• Consumption meter compatibility (receiving and counting pulse signals)
• Configuration software (on RS232 or RS485 port)

• Memory for storage of applications, data (with ftp possibility)
• External IO-expansion (optional – for receiving 32 inputs per module)
• Firmware upgrades (ftp server)

• External battery connection  (spare power supply)
• Watchdog circuit and system monitoring, log
• Automatic mobile network connection recovery


- Data collection (digital or pulse signal)
- Forwarding data of industrial systems
- Smart metering (remote readout)
- Measurement and data collecting systems
- Remote monitoring of devices
- Monitoring of input lines
- Remote control (optional)

Package content: M2M Modem Plus IO RS485, GSM/GPRS antenna, Power Supply Unit (230 VAC)

  • Manufacturing delays : Usually in stock
  • Samples available : yes, contact the supplier

Supplier information

WM Systems

The WM SYSTEMS LLC. was estabilished more thanb 15 years ago In Budapest, Hungary. Now we have 25 employees, mainly engineers. We operate offices in Hungary, Slovakia, Romania. We are M2M/IOT European market technology leader! Our activities are based on the M2M (machine-to-machine) field, where we are serving our Partners with our technical skills and professional funds through our wireless data transmission solutions built by our developments, systems of the mobile and internet operators. Ever since the foundation, we have been trying to add even more value to the sales field by – among others – developing our own hardware and software, and creating M2M-based data transmitting product families with the central communication and data collection of the M2M-server platform. With the help of this portfolio, we can offer all-inclusive and complete solutions for our Clients and prospective Partners with applications for the Industry, Security, Telemetry, Monitoring and Metering fields. Furthermore, complete GPS-based Tracking solutions are provided for our Partners.During the past 15 years, our company has grown to become a market leader on the target areas of developing, manufacturing and trading of m2m mobile communication data transmitting systems.We are accepted and recognized partner for the international mobile operators, known partner for the system integrators, for the industrial clients, utility companies and for the service provider sector.We are partners and successful vendors of the Gemalto®, Telit®, Option® international module manufacturers. We offer a wide range of mobile network connections due the CDMA450, 2G, 3G, LTE 4G, LTE450 and LTE 750/800 global wireless module families and M2M products for worldwide usage. Furthermore we are the official international distributors of the LTE 31 band (450MHz) NTLM® wireless modules.Our activities are extended over the production trading for the technical support, software and hardware integration tasks.Our sales offers the newest state-of-the-art technologies through a wide product range we have developed, which are using these mobile data transmission solutions for the emerging needs and target areas. Therefore we have international projects, referencies during the past years. With our developments and success projects during the last decade could begin a lot of new M2M-based systems all over the world and they are still working for sure!Béla Kormos Managing Director